The Harvard College Alcohol Study finds that 67% of college students support efforts to "crack down...
The Harvard College Alcohol Study finds that 67% of college students support efforts to "crack down on underage drinking." The study took a sample of almost 15,000 students, so the population proportion who support a crackdown is very close to p = 0.67.† The administration of your college surveys an SRS of 210 students and finds that 147 support a crackdown on underage drinking.
(a) What is the sample proportion who support a crackdown on underage drinking? (Round your answer to two decimal places.)
(b) If in fact the proportion of all students on your campus who support a crackdown is the same as the national 67%, what is the probability that the proportion in an SRS of 210 students is as large or larger than the result of the administration's sample? (Use a Normal approximation with a continuity correction to approximate the probability. Round your answer to four decimal places.)
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The Harvard College Alcohol Study finds that 67% of college
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